Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2015

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Three months ended June 30, 2015
	Net Income (numerator)		Shares (denominator)	Per Share Amount
Basic EPS	$	23,316	87,814	$	0.27
Effect of restricted stock	—		153
Diluted EPS	$	23,316	87,967	$	0.27

	Three months ended June 30, 2014
	Net Income (numerator)		Shares (denominator)	Per Share Amount
Basic EPS	$	26,472	87,728	$	0.30
Effect of restricted stock	—		172
Diluted EPS	$	26,472	87,900	$	0.30

	Six Months Ended June 30, 2015
	Net Income (numerator)		Shares (denominator)	Per Share Amount
Basic EPS	$	40,928	87,802	$	0.47
Effect of restricted stock	—		164
Diluted EPS	$	40,928	87,966	$	0.47

	Six Months Ended June 30, 2014
	Net Income (numerator)		Shares (denominator)	Per Share Amount
Basic EPS	$	40,551	87,716	$	0.46
Effect of restricted stock	—		192
Diluted EPS	$	40,551	87,908	$	0.46